Class information for: |
Basic class information |
Hierarchy of classes |
The table includes all classes above and classes immediately below the current class. |
| Cluster id | Level | Cluster label | #P |
|---|---|---|---|
| 1 | 4 | PHYSICS, CONDENSED MATTER//PHYSICS, APPLIED//MATERIALS SCIENCE, MULTIDISCIPLINARY | 2188495 |
| 556 | 3 | CHALCOGENIDE GLASSES//CHALCOGENIDES//PHASE CHANGE MEMORY | 18113 |
| 1276 | 2 | PHASE CHANGE MEMORY//OPTICAL DISK//GE2SB2TE5 | 9078 |
| 25865 | 1 | LAND GROOVE RECORDING//DVD PICKUP HEAD//DWDD | 291 |
Terms with highest relevance score |
| rank | Category | termType | chi_square | shrOfCwithTerm | shrOfTermInClass | termInClass |
|---|---|---|---|---|---|---|
| 1 | LAND GROOVE RECORDING | authKW | 1433442 | 5% | 88% | 15 |
| 2 | DVD PICKUP HEAD | authKW | 630133 | 3% | 73% | 8 |
| 3 | DWDD | authKW | 482444 | 2% | 64% | 7 |
| 4 | SUBSTRATE BIREFRINGENCE | authKW | 433219 | 1% | 100% | 4 |
| 5 | OPTICAL PHASE SHIFTER | authKW | 243684 | 1% | 75% | 3 |
| 6 | OPTICAL DISK | authKW | 236084 | 8% | 10% | 22 |
| 7 | DIFFERENTIAL PUSH PULL METHOD | authKW | 216610 | 1% | 100% | 2 |
| 8 | LIGHT BEAM SCATTERING | authKW | 216610 | 1% | 100% | 2 |
| 9 | MAGNETO OPTICAL DATA STORAGE | authKW | 216610 | 1% | 100% | 2 |
| 10 | MO MEDIUM | authKW | 216610 | 1% | 100% | 2 |
Web of Science journal categories |
| chi_square_rank | Category | chi_square | shrOfCwithTerm | shrOfTermInClass | termInClass |
|---|---|---|---|---|---|
| 1 | Optics | 2881 | 42% | 0% | 121 |
| 2 | Physics, Applied | 707 | 33% | 0% | 96 |
| 3 | Instruments & Instrumentation | 379 | 12% | 0% | 35 |
| 4 | Engineering, Electrical & Electronic | 109 | 14% | 0% | 40 |
| 5 | Engineering, General | 108 | 5% | 0% | 15 |
| 6 | Polymer Science | 52 | 6% | 0% | 18 |
| 7 | Engineering, Chemical | 15 | 4% | 0% | 13 |
| 8 | Automation & Control Systems | 11 | 2% | 0% | 5 |
| 9 | Engineering, Manufacturing | 11 | 1% | 0% | 4 |
| 10 | Engineering, Mechanical | 3 | 2% | 0% | 6 |
Address terms |
| chi_square_rank | term | chi_square | shrOfCwithTerm | shrOfTermInClass | termInClass |
|---|---|---|---|---|---|
| 1 | ADV DEVICE TECHNOL DEV | 139246 | 1% | 43% | 3 |
| 2 | ADV STORAGE RETRIEVAL | 108305 | 0% | 100% | 1 |
| 3 | ADVA TECH | 108305 | 0% | 100% | 1 |
| 4 | AV IT DEV GRPSHINAGAWA KU | 108305 | 0% | 100% | 1 |
| 5 | AVC ADV PLIANCES DEV | 108305 | 0% | 100% | 1 |
| 6 | CORE TECHNOL DEV HEADQUATERS | 108305 | 0% | 100% | 1 |
| 7 | DM PROJECT | 108305 | 0% | 100% | 1 |
| 8 | EDUC FUKASA KU | 108305 | 0% | 100% | 1 |
| 9 | MOBIL NETWORK CO | 108305 | 0% | 100% | 1 |
| 10 | OPT DISC BUSINESS UNIT | 108305 | 0% | 100% | 1 |
Journals |
| chi_square_rank | term | chi_square | shrOfCwithTerm | shrOfTermInClass | termInClass |
|---|---|---|---|---|---|
| 1 | APPLIED OPTICS | 14404 | 24% | 0% | 69 |
| 2 | JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS | 13852 | 22% | 0% | 63 |
| 3 | KUNSTSTOFFE-GERMAN PLASTICS | 7120 | 3% | 1% | 9 |
| 4 | CD-ROM PROFESSIONAL | 2640 | 0% | 2% | 1 |
| 5 | OPTICAL REVIEW | 2495 | 2% | 0% | 7 |
| 6 | MEASUREMENT SCIENCE AND TECHNOLOGY | 1938 | 4% | 0% | 13 |
| 7 | IEICE TRANSACTIONS ON ELECTRONICS | 1131 | 3% | 0% | 8 |
| 8 | KUNSTSTOFFE-PLAST EUROPE | 1004 | 1% | 0% | 3 |
| 9 | NEC RESEARCH & DEVELOPMENT | 990 | 1% | 0% | 2 |
| 10 | JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION | 865 | 3% | 0% | 9 |
Author Key Words |
| chi_square_rank | term | chi_square | shrOfCwithTerm | shrOfTermInClass | termInClass | LCSH search | Wikipedia search |
|---|---|---|---|---|---|---|---|
| 1 | LAND GROOVE RECORDING | 1433442 | 5% | 88% | 15 | Search LAND+GROOVE+RECORDING | Search LAND+GROOVE+RECORDING |
| 2 | DVD PICKUP HEAD | 630133 | 3% | 73% | 8 | Search DVD+PICKUP+HEAD | Search DVD+PICKUP+HEAD |
| 3 | DWDD | 482444 | 2% | 64% | 7 | Search DWDD | Search DWDD |
| 4 | SUBSTRATE BIREFRINGENCE | 433219 | 1% | 100% | 4 | Search SUBSTRATE+BIREFRINGENCE | Search SUBSTRATE+BIREFRINGENCE |
| 5 | OPTICAL PHASE SHIFTER | 243684 | 1% | 75% | 3 | Search OPTICAL+PHASE+SHIFTER | Search OPTICAL+PHASE+SHIFTER |
| 6 | OPTICAL DISK | 236084 | 8% | 10% | 22 | Search OPTICAL+DISK | Search OPTICAL+DISK |
| 7 | DIFFERENTIAL PUSH PULL METHOD | 216610 | 1% | 100% | 2 | Search DIFFERENTIAL+PUSH+PULL+METHOD | Search DIFFERENTIAL+PUSH+PULL+METHOD |
| 8 | LIGHT BEAM SCATTERING | 216610 | 1% | 100% | 2 | Search LIGHT+BEAM+SCATTERING | Search LIGHT+BEAM+SCATTERING |
| 9 | MAGNETO OPTICAL DATA STORAGE | 216610 | 1% | 100% | 2 | Search MAGNETO+OPTICAL+DATA+STORAGE | Search MAGNETO+OPTICAL+DATA+STORAGE |
| 10 | MO MEDIUM | 216610 | 1% | 100% | 2 | Search MO+MEDIUM | Search MO+MEDIUM |
Core articles |
The table includes core articles in the class. The following variables is taken into account for the relevance score of an article in a cluster c: (1) Number of references referring to publications in the class. (2) Share of total number of active references referring to publications in the class. (3) Age of the article. New articles get higher score than old articles. (4) Citation rate, normalized to year. |
Classes with closest relation at Level 1 |